TSTF-07-33, Errata Pages for TSTF-498, Rev 1, Risk-Informed Containment Isolation Valve Completion Times (BAW-2461).

Errata Pages for TSTF-498, Rev 1, Risk-Informed Containment Isolation Valve Completion Times (BAW-2461).

ML073370105
Person / Time
Site:	Technical Specifications Task Force
Issue date:	12/02/2007
From:	David Bice, Gambrell R, Joseph Messina, Yates B BWR Owners Group, PWR Owners Group
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
TSTF-07-33, TSTF-498, Rev 1
Download: ML073370105 (4)

Text

TECHNICAL SPECIFICATIONS TASK FORCE TSTF A JOINT OWNERS GROUP ACTIVITY December 2, 2007 TSTF-07-33 PROJ0753 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001

SUBJECT:

Errata Pages for TSTF-498, Revision 1, "Risk-Informed Containment Isolation Valve Completion Times (BAW-2461)"

REFERENCE:

Letter dated October 10, 2007 from the TSTF to the U.S. NRC, "Response to NRC Request for Additional Information (RAI) Regarding TSTF-498, Revision 0, 'Risk-Informed Containment Isolation Valve Completion Times (BAW-2461)'."

Dear Sir or Madam:

In the letter referenced above, the TSTF transmitted RAI responses and Revision 1 of TSTF-498, "Risk-Informed Containment Isolation Valve Completion Times (BAW-2461)," to the NRC for review.

We have discovered two typographical errors in Revision 1:

• The proposed Required Action F.3 of Specification 3.6.3 states, "Perform SR 3.6.3.6 for the resilient seal purge valves closed to comply with Required Action E.1." The correct reference is Required Action F.1, not Required Action E.1

• The Bases of SR 3.6.3.1 refers to Condition E. The correct reference is Condition F.

The two updated pages of the Traveler are attached.

11921 Rockville Pike, Suite 100, Rockville, MD 20852 Phone: 301-984-4400, Fax: 301-984-7600 Email: tstf@excelservices.com Administered by EXCEL Services Corporation

TSTF 07-33 December 2, 2007 Page 2 Should you have any questions, please do not hesitate to contact us.

Bert Yates (PWROG/W) John Messina (BWROG)

David Bice (PWROG/CE) Reene' Gambrell (PWROG/B&W)

Enclosure cc: Tim Kobetz, Technical Specifications Branch, NRC Tim Kolb, Technical Specifications Branch, NRC Matthew Hamm, Technical Specifications Branch, NRC

TSTF-498, Rev. 1 Containment Isolation Valves 3.6.3 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME FD.2 -------------NOTES--------------

1. Isolation devices in high radiation areas may be verified by use of administrative means.

2. Isolation devices that are locked, sealed, or otherwise secured may be verified by use of administrative means.

Verify the affected Once per 31 days for penetration flow path is isolation devices isolated. outside containment AND Prior to entering MODE 4 from MODE 5 if not performed within the previous 92 days for isolation devices inside containment AND FD.3 Perform SR 3.6.3.6 for the Once per [ ] days ]

resilient seal purge valves closed to comply with Required Action DF.1.

GE. Required Action and GE.1 Be in MODE 3. 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> associated Completion Time not met. AND GE.2 Be in MODE 5. 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> BWOG STS 3.6.3-6 Rev. 3.0, 03/31/04

TSTF-498, Rev. 1 Containment Isolation Valves B 3.6.3 BASES SURVEILLANCE [ SR 3.6.3.1 REQUIREMENTS Each [48] inch containment purge valve is required to be verified sealed closed at 31 day intervals. This Surveillance is designed to ensure that a gross breach of containment is not caused by an inadvertent or spurious opening of a containment purge valve. Detailed analysis of the purge valves failed to conclusively demonstrate their ability to close during a LOCA in time to limit offsite doses. Therefore, these valves are required to be in the sealed closed position during MODES 1, 2, 3, and 4. A containment purge valve that is sealed closed must have motive power to the valve operator removed. This can be accomplished by de-energizing the source of electric power or by removing the air supply to the valve operator. In this application, the term "sealed" has no connotation of leak tightness. The Frequency is a result of an NRC initiative, Generic Issue B-24 (Ref. 78), related to containment purge valve use during unit operations. In the event purge valve leakage requires entry into Condition FD, the Surveillance permits opening one purge valve in a penetration flow path to perform repairs. ]

SR 3.6.3.2 This SR ensures that the minipurge valves are closed as required or, if open, open for an allowable reason. If a purge valve is open in violation of this SR, the valve is considered inoperable. If the inoperable valve is not otherwise known to have excessive leakage when closed, it is not considered to have leakage outside of limits. The SR is not required to be met when the minipurge valves are open for pressure control, ALARA or air quality considerations for personnel entry, or for Surveillances that require the valves to be open. The minipurge valves are capable of closing in the environment following a LOCA. Therefore, these valves are allowed to be open for limited periods of time. The 31 day Frequency is consistent with other containment isolation valve requirements discussed in SR 3.6.3.3.

SR 3.6.3.3 This SR requires verification that each containment isolation manual valve and blind flange located outside containment and not locked, sealed, or otherwise secured and required to be closed during accident conditions is closed. The SR helps to ensure that post accident leakage of radioactive fluids or gases outside the containment boundary is within BWOG STS B 3.6.3-13 Rev. 3.0, 03/31/04